Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8313397 | Batting tool and ball-game bat | Katsumi Shimohira | 2012-11-20 |
| 8007381 | Bat used for baseball or softball | Koji Yoshida | 2011-08-30 |
| 7993223 | Bat for baseball or softball | Katsumi Shimohira, Shuichi Nagashima | 2011-08-09 |
| 7985149 | Bat for baseball or softball | Katsumi Shimohira, Yuta Okutsu | 2011-07-26 |
| 7980970 | Bat for baseball or softball | Katsumi Shimohira, Shuichi Nagashima | 2011-07-19 |
| 6213888 | Golf club shaft | Masatake Kawaguchi, Katsumi Shimohira, Atsushi Yagita | 2001-04-10 |